This excuse of "There is no accurate FE map" is nothing more than claiming ignorance as a viable defence.
And please don't suggest DET of the Bipolar map. Apart from all the other objection, no flat-earth sympathiser except you, Tom Bishop and Sandokhan (bipolar) and JRowe (DET) seem to take them seriously.
So, what real choice is there other than something close to the Ice Wall map?
Great, but I would point out that you needed to change the argument to distances as opposed to great circle paths in order to justify that claim.
No, I do not! I don't believe that I mentioned "great circle paths", that was raised by you.
Even
brotherhood of the dome, as flat as they come accepts that
reasonably accurate flight distances can be estimated from flight times, especially if both directions are averaged. Of course, he ignores routes that won't fit his preconceived notions.
So we know with
reasonable accuracy the distances that aircraft actually fly. Those distances "happen" to be close to
great circles on the Globe.
And, as I stated earlier,
reasonable accuracy is all we need as
on the "Ice Wall" map the FE distance for Sydney to Santiago is more than twice the distance flown and
on the "Bipolar" map it is more 50% over distance flown.
In addition, on the real world, that flight
leaves Sydney flying SE,
on the "Ice Wall" map its initial heading would have to be NE and it would fly over the USA but
on the "Bipolar" map its initial heading would have to be SW, flying between South Africa and Antarctica.
Not only that, but on the "Bipolar" map these errors are also on the busier Japan to/from USA to/from Europe routes as well.
And some common routes are totally impossible on the "Bipolar" map.
The shortest route from Brisbane, Australia to Vancouver, Canada is definitely
across the Pacific Ocean, not
across Africa!
My son works for Microsoft in Seattle and flies that route quite often.
That "Bipolar" map is totally ridiculous as a continental layout of the earth.
But, if
John-come-lately or
DavidOrJohn can either find a FE map that fits all known routes are alternately proves no such map is possibly, he'll have certainly earned his "keep".